Lock mechanism



July 15 1924.

E. W ANDERSON LOCK yMECHANISM Filed March 6. 1923 Patented July 15, 1924.

UNITED STATES PATENT OFFICE.

EDGAR W. ANDERSON, OF MANITOWOC, WISCONSIN, ASSIGNO.. T INVINCIBLE METAL FURNITURE COMPANY, OF MANITOVJ'OC, WISCONSIN, A CORPORATION 0F WIS- CON SIN.

LOCK MECHANISM.

Application filed March 8.

To al? whom t may concern.'

Be it known that I, EDGAR 1V. ANDERSON, a citizen of the United States, and a resident of Manitowoc, in the county of Manitowoc and State of lVisconsin, have invented an Improved Lock Mechanism, of which the following is a specification.

This invention relates to locks and relates particularly to locks for the cell doors of safe-deposit boxes and the like, of the general type which forms the subject-matter of U. 'S. Letters Patent No. 1,486,925, dated November 28, 1922.

The object of the present invention is to provide improved, simplified and relatively inexpensive mechanism for actuating the auxiliary bolt or bolts positioned within the door to which the lock is applied, designed to safeguard the door from' being pried open.

To effect this object, a lock mechanism embodying my invention and improvements comprises the various features, combination of features and details of construction hereinafter described and claimed.

In the accompanying drawings in which my invention is fully illustrated,

Figure 1 is a front view of a safe-deposit unit comprising two cells, one of said cells being shown complete and the door thereof being closed.

Figure 2 is a sectional plan view thereof, on the line 2+2 of Fig, 1.

Figure 3 is a sectional front view on the line 3*3 of Fig. 2.

Figure 4 is a detached rear view of a lock embodying my invention and improvements, showing the means for actuating the auxiliary bolts, positioned in the wall of the cell door; and

Figures 5 and 6 are detached views of parts of the mechanism for actuating said auxiliary bolts.

Referring now to the drawings, A designates as a whole, the casing of a safe-deposit unit, comprising top and bottom walls 1 and 2, side walls 3, and a rear wall, not shown. The interior of the unit A is divided by a partition or partitions 4 into cells 5, the front sides of which are closed by doors 6 pivoted at one edge to hinge pins 7. The doors 6 are adapted to be secured in closed position by locks 8 secured to the inner sides of said doors in proper 1923. Seri-a1 N'o. 623,087.

position, the bolts 9 of which are adapted to engage a shoulder 10 formed in proper position on the partition 4.

As regards their usual features, and excepting as hereinafter particularly described and pointed out, a safe deposit unit f my invention may be of any desired or approved construction, and will readily be understood by persons familiar withthe art from an examination of the drawings and without a description thereof in detail.

Also, each unit A may have any desired number of cells 5, the sizes of whieh may vary according to requirements.

In addition to the locking bolt 9, a lock mechanism embodying my invention coinprises auxiliary bolts 11 and 12 which are slidably fitted, respectively, to holes 13' and 1A formed in the door 6, substantially par allel with the hinge pins 7 and which are respectively adapted to engage holes 15 and 16 formed in the top and bottom walls 1 and 2, respectively, of the unit A.

The casing of the lock 8 is secured to the inner side of the door by means of screws 17 and secured to the inner side thereof is a bar 18, the inner ends of which are adapted to rest in contact with shoulders formed on the top and bottom walls of the unit A, the shoulder on the bottom wall being shown at 19, Fig. 2. Said bar 18 safeguards the lock 8 from being driven inwardly into the cell 5 by stripping the threads of the screws 1'?, all as fully described in said U. S. Patent. No. 1,436,925.

As shown, the main bolt 9 of the lock 8 is of the usual type adapted to be operated by means of separate keys, comprising a master key which remains in the possession of the vault attendant, adapted to engage a key slot formed in the barrel 20 of the lock 8, and a second key which is delivered to and remains in the possession of the proprietor of the box, adapted to engage a key slot formed in the key barrel 21, said key barrels 20 and 21 being rotatably mounted in housings 22 and 23, respectively, which engage holes formed in the door 6, the ends thereof extending substantially flush with the outer side of said door.

As regards the mechanism for actuating the main bolt 9 of the lock 8, said lock may be made of any usual or approved con` struction. Locks suitable for the purpose may be purcl ased commercially and said oper f iecsianism need not, theretore, be desc ni detail.

The n:.iziiliaif bolts il and l2 form no A of the loch 8 proper but, as previously st; ed, are mounted in holes formed in the door 6 so as to be movable endwise therein and are adapted to be actuated by suitable connection with the operating mechanism ot the main bolt 9 ot the loch, in the following manner Mounted to turn on the housing.;- ot the hey barrel 2l is a ring 24': termed on which are lugs or proiections i and 26 adapted Vto engage notche 37 and i2@ torn'ied in said auxiliary bolts, the door G being provided on its inner side with a recess 29 adapted to pery 'i engagement et the lugs or projections -.5 and 26 with the notches Z7 and and turning movement ot the ring 24.

lilith the described construction, it is obvious that turning movement ot the ring 24 with the lugs or projections 25 and 26 thereon, in engagement with the notches 2T and :28 in the auxiliary bolts 1l and l2, will operate to advance or retract said bolts as said ring is turned in one direction or the other, ln the preferable construction shown, the ring 24T is operatively connected to the main bolt 9 otthe lock S, the relation heilig such that when said bolt 9 is advanced and retracted, turning movement will be imparted to the ring 24 in a direction to advance and retract the auxiliary bolts ll and l2 coincident With advancement and retraction ot the bolt As shown, the connection between the bolt 9 and the ring 9A- consists ot a link 30, one end ot which is pivoted to a lug 31 on said ring and formed in the other end et which is a hole 82 which is adapted to engage a lug or projection 33 on the bolt tl, VYvhich extends through a slot 34 formed in the rear Wall ot the loch casing d projection 33 and slot Se being proportioned to permit contemplated movement of the main bolt 9 in operation.

ln use, the ring E24 is designed to rest in tact with the rear side ot' the casing out loci; 8, the thickness ol said ring and length oit the projections .J5 and 26 be so proportioned that the overall dimenx i ot said ring trom theouter ends of t the projections zo and 26 to the remote side simicient clearance being provided, however, f

o permit said ring to turn freely on the housing of the lrey barrel 21, Without binding.

is shown, the pii'oted end ot the link 30 contined between the rear Wall of the casing of the lock 8 and the projection 3l on the ring 2%, said ring and lug being cui; array, as shown at 35 to a depth slightly greater than the thickness of said link.

W'hile l have herein shown two auxiliary locking bolts, I do not desire to limit myselt thereto, as good results would be ob` tained with the use ot a single bolt only* ln other Words., Within the contemplation ot my invention, a construction in which tito auxiliary bolts or only a single bolt is used, are considered to be equivalents one of the other.

l claiml. The combination ot a door and locking mechanism therefor, con'iprisingr a main boltand an auxiliaryT bolt or bolts, and mechanism Jfor actuating said bolts to advance and retract the same, the means for actuating said auxiliary bolt or bolts coin prising a rotatable ring, projections thereon which engage a notch or notches formed in said auxiliary bolt or bolts, and connection between said ring and the main bolt of the locking mechanism, substantially as described.

2. A door and locking mechanism theretor as specied in claim l, in which the connection between said :main bolt and the auX- iliary bolt or bolts for actuating the latter, consists ot a link, one end of which is pivoted to said ring and the opposite end ol which is connected to a lug or projection on the main bolt ot the locking mechanism,

antially as described.

5. A door and locking mechanism therei as specified in claim l, in Which the r tatable ring for actuating the auxiliary bolt or bolts is mounted on the housing of a key barrel, substantially as described.

ln Witness that l claim the foregoing as my invention, l attra my signature this 13 day ot February, A. D. 1923.

EDGAR lV. ANDER-h. 

